very very few tripod maker design their telescopic legs in the reverse manner, ie smallest diameter section at the top & largest at the bottom.
we know from experience & tripod makers advice that we should extend the smallest section last to adjust height, with centre column being LL as the last resort.
so, looking at traditional alu tripod with design, the lock for smallest section normally low, ie needs to bend down abit to reach it.
so, normally, for convenience, we extend the smallest section 1st and adjust the middle section's extension to adjust the tripod height as the lock is easily reach.
why they dont design the telescopic legs like benbo or unilock tripod?